description update

Author: vellt

README.md

@@ -1,7 +1,7 @@
 # RSA Encryption Flutter 
 
 Make sensitive conversations safe. Give your conversation partner your public key to encrypt the message for you, which only you can decrypt. 
-<br><br>![visitors](https://visitor-badge.glitch.me/badge?page_id=vellt/rsa_encryption_flutter)
+<br><br>![visitors](https://visitor-badge.glitch.me/badge?page_id=vellt/rsa_encryption_flutter) ![Web 1280 – 1]( https://img.shields.io/badge/-open%20source-green)
 
 
 ![Web 1280 – 1](https://user-images.githubusercontent.com/61885011/129395300-34399bcf-bc45-4e15-94cd-4cec528feae7.png)